Home / 3,116.58-4,303.05-1,938.18

Finding the Fourth Proportional to 3,116.58, 4,303.05 and 1,938.18

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Solution

The fourth proportional to 3,116.58, 4,303.05 and 1,938.18 is: 2,676.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,116.58 : 4,303.05 = 1,938.18 : x
  2. Step 2: Convert to fraction form
    3,116.58/4,303.05 = 1,938.18/x
  3. Step 3: Cross multiply
    3,116.58x = 4,303.05 × 1,938.18
  4. Step 4: Simplify right side
    3,116.58x = 8,340,085.45
  5. Step 5: Solve for x
    x = 8,340,085.45/3,116.58
  6. Step 6: Final answer
    x = 2,676.04

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.